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: Class UnionPattern

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com.icl.saxon.pattern
Class UnionPattern


java.lang.Object

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  +--com.icl.saxon.pattern.Pattern

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        +--com.icl.saxon.pattern.UnionPattern

public class UnionPattern
extends Pattern

A pattern formed as the union (or) of two other patterns

Field Summary

protected Pattern p1


protected Pattern p2


Fields inherited from class com.icl.saxon.pattern.Pattern

originalText, staticContext

Constructor Summary

UnionPattern(Pattern p1, Pattern p2)
          Constructor

Method Summary

Pattern getLHS()
          Get the LHS of the union

short getNodeType()
          Determine the types of nodes to which this pattern applies.

Pattern getRHS()
          Get the RHS of the union

boolean matches(NodeInfo e, Context c)
          Determine if the supplied node matches the pattern

void setOriginalText(java.lang.String pattern)
          Set the original text

Pattern simplify()
          Simplify the pattern: perform any context-independent optimisations

Methods inherited from class com.icl.saxon.pattern.Pattern

getDefaultPriority, getFingerprint, getLineNumber, getStaticContext, getSystemId, make, setStaticContext, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

p1


protected Pattern p1

p2


protected Pattern p2

Constructor Detail

UnionPattern


public UnionPattern(Pattern p1,
                    Pattern p2)

Constructor

Parameters:: p1 - the left-hand operand; p2 - the right-hand operand

Method Detail

simplify


public Pattern simplify()
                 throws XPathException

Simplify the pattern: perform any context-independent optimisations

Overrides:: simplify in class Pattern

Following copied from class: com.icl.saxon.pattern.Pattern

Returns:: the optimised Pattern

setOriginalText


public void setOriginalText(java.lang.String pattern)

Set the original text

Overrides:: setOriginalText in class Pattern

matches


public boolean matches(NodeInfo e,
                       Context c)
                throws XPathException

Determine if the supplied node matches the pattern

Overrides:: matches in class Pattern

Returns:: true if the node matches either of the operand patterns

getNodeType


public short getNodeType()

Determine the types of nodes to which this pattern applies. Used for optimisation. For patterns that match nodes of several types, return Node.NODE

Overrides:: getNodeType in class Pattern

Returns:: the type of node matched by this pattern. e.g. Node.ELEMENT or Node.TEXT

getLHS


public Pattern getLHS()

Get the LHS of the union

getRHS


public Pattern getRHS()

Get the RHS of the union